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Finding the Fourth Proportional to 21,683.52, 29,923.71 and 12,252.30

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Solution

The fourth proportional to 21,683.52, 29,923.71 and 12,252.30 is: 16,908.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,683.52 : 29,923.71 = 12,252.30 : x
  2. Step 2: Convert to fraction form
    21,683.52/29,923.71 = 12,252.30/x
  3. Step 3: Cross multiply
    21,683.52x = 29,923.71 × 12,252.30
  4. Step 4: Simplify right side
    21,683.52x = 366,634,272.03
  5. Step 5: Solve for x
    x = 366,634,272.03/21,683.52
  6. Step 6: Final answer
    x = 16,908.43

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.